FREQUENCY-DIVIDING-TRANSPONDER TAG A frequency-dividing transponder tag includes an active strip of magnetic material that, when in the presence of a magnetic bias field within a predetermined magnetic field intensity range, responds to excitation by electromagnetic radiation of a first predetermined frequency by radiating electromagnetic radiation of a second predetermined frequency that is a fre...

A pulse generator is composed of switch means to switch supply of a first current through a circuit, a first condenser connected to the switch means in series and primary charged by the first current, voltage raising means having a primary winding serially connected to the first condenser and a secondary winding to obtain voltage output by the first current, magnetic switch means of current flow s...

In a digital radio-relay system having a transmitting terminal station (10), at least one repeater station (100), and a receiving terminal station (50), a repeater station (100) is a non-regenerative repeater station which does not regenerate a digital signal in order to simplify and reduce cost of the system, while keeping excellent signal quality in transmission. Each repeater station has a plur...

53 A surgical stapler is provided which is insertable through an endoscopic tube to enable a surgeon to staple a hernia patch to tissue inside a body cavity. The endoscopic surgical stapler includes a staple cartridge pivotally mounted on the distal end of a support tube extending from a handle provided with an actuator mechanism for actuating a staple forming mechanism inside the staple cartridge...

A surgical apparatus 10 for removing fasteners from the body includes a pair of fastener removing members 18 which are configured and dimensioned to contact the legs of a fastener 100 to be removed. The legs are then forced apart so as to cause the fastener legs to deform to a configuration suitable for removable from the body.

A porous preform is densified by heating while emersed in a precursor liquid. Heating is achieved by passing a current through the preform or by an induction coil immersed in the liquid. Ways to control the densification process are also described.

A self-contained, transportable reverse osmosis water purification unit has a limited throughput of no more than about 20 gpm (88 l/m) of permeate in a single pass operation with reverse osmosis ("RO") modules which can be cleaned in place. When raw water is particularly fouled, the unit is operated in a double pass operation in which the permeate from the first pass is used as feed for a second R...

Method for seaming two edges of a knitted tubular article, especially a sock, including the steps of making a tubular article with a single-cylinder circular machine, starting from the elastic hem and finishing at the side of the toe which is left open, which method comprises: (a) lifting a predetermined number of needles (3) of a first semirank; (b) lifting further up said needles (3) to remove t...

A head mounted image display apparatus includes optical visual units mounted on a laterally disposed shaft and adjustable so as to be movable toward and away from each other for establishing a correct eye spacing for a user. LCD display panels are mounted within the optical visual units so as to be vertically movable while ocular lenses onto which images displayed by the LCDs are projected via an ...

An endoscope (10) includes a focusing mechanism (17) having a focus control element (80) at a proximal end (19) of the endoscope and a mechanical coupling connecting the focus control element (80) to an image transmitting device (e.g., an electro-optical sensor (24) or one or more optical fibres (26)) mounted at a distal end (14) of an elongated insertion section (12) of the endoscope (10). Rotati...

A vasodilating catheter balloon characterized by the fact that the balloon portion thereof is provided with what serves concurrently as a lubricating portion and a nonlubricating portion.

A process and an apparatus for laying threads, such as textile threads and particularly glass-fibre threads, are disclosed, the threads being continuously fed on a curved path to a laying plate and being laid controllably in any configuration about fixed points arranged variably there and formed by movable pins, in order, for example, to form a reinforcement for fibre-reinforced articles consistin...

The invention concerns a method for the cultivation of cells of higher organisms in communicating chamber systems, in which the cells to be cultivated are introduced and bred in a manner characterized in that the required conditions for cultivation are provided by uniform gassing of the surface, and whereby the supply of gas is provided through a microporous gas supply line introduced into the cha...

There is disclosed a process and apparatus for depositing threads such as textile threads and in particular glass fibre threads, the threads being continuously supplied on a curved path onto a support plate and around fixed points which are arranged movably on it, formed by movable pins, so as to be laid down in a controlled manner in any desired configuration. The process and apparatus of this in...

This preferably wooden structure for an ironing board and auxiliary surfaces has the distinguishing feature of having two primary rectangular frames hinged to each other at their upper end with an angle of separation bounded by the length defined by two half-surfaces hinged to the centres of the said two primary rectangular frames and hinged to each other on their base by hinges such as to form a ...

The corrugated cardboard consists of two outer layers (6,7) of flat paper and two or more inner layers (8,9) of corrugated paper. The external crests of the corrugations of the two corrugated layers are stuck to the inner surfaces of the outer paper layers (6,7), while the facing crests of the corrugated layers are stuck together, either directly or via an intermediate flat paper layer. The inner ...